Ball launching device



FIG. 1 is a perspective view illustrating a new ornamental design for a ball launching device;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevation view thereof; and,

FIG. 6 is a front elevation view thereof. 

CLAIM The ornamental design for a ball launching device, as shown and described. 